Create PutUpdateUser.java and Add test

src/test/java/PutUpdateUser.java

@@ -0,0 +1,59 @@
+import io.restassured.builder.RequestSpecBuilder;
+import io.restassured.builder.ResponseSpecBuilder;
+import io.restassured.http.ContentType;
+import io.restassured.specification.RequestSpecification;
+import io.restassured.specification.ResponseSpecification;
+import org.json.simple.JSONObject;
+import org.testng.annotations.BeforeClass;
+import org.testng.annotations.DataProvider;
+import org.testng.annotations.Test;
+
+import static io.restassured.RestAssured.given;
+import static org.hamcrest.Matchers.equalTo;
+
+public class PutUpdateUser {
+    private static RequestSpecification requestSpecification;
+    private static ResponseSpecification responseSpecification;
+
+    @BeforeClass
+    public static void createRequestSpecification() {
+        requestSpecification = new RequestSpecBuilder().
+                setBaseUri("https://reqres.in/api").
+                setContentType(ContentType.JSON).
+                build();
+    }
+
+    @BeforeClass
+    public static void createResponseSpecification() {
+        responseSpecification = new ResponseSpecBuilder().
+                expectContentType(ContentType.JSON).
+                expectStatusCode(200).
+                build();
+    }
+    @DataProvider(name = "User data")
+    public Object[][] createUserData(){
+        return new Object[][]{
+                {1,"ahmed" , "builder"},
+                {2,"mazen" , "developer"},
+                {3,"ali", "carpenter"}
+        } ;
+    }
+    @Test( dataProvider = "User data")
+    public void validateSuccessfulUpdateOfExistingUser(int id, String name, String job){
+        JSONObject request = new JSONObject();
+        request.put("name" , name);
+        request.put("job" , job);
+        given().
+                spec(requestSpecification).
+                pathParam("id" , id).
+        when().
+                body(request.toJSONString()).
+                put("/users/{id}").
+        then().
+                assertThat().
+                spec(responseSpecification).
+        and().
+                assertThat().
+                body("name" , equalTo(name) , "job" , equalTo(job));
+    }
+}